METHOD FOR PHACOEMULSIFICATION OF CATARACT, WHICH PROVIDES PREVENTION AND REDUCTION OF SYNDROMES OF INTRAOPERATIVE DEVIATION OF IRRIGATION FLOW AND/OR ATONIC IRIS (IFIS) Russian patent published in 2025 - IPC A61F9/07 A61F2/16 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to ophthalmology. Cohesive viscoelastic is introduced into the capsular sac and the dispersive viscoelastic is introduced into the anterior chamber. After performing the main incision and paracenteses, a solution of dispersive viscoelastic in amount of 0.2 ml is introduced into the centre of the anterior chamber. Then cohesive viscoelastic 0.6 ml is introduced through the main incision above the iris in area of 150 to 90 angular degrees. Thereafter, a cohesive viscoelastic in amount of 0.2 ml is introduced through the paracentesis into area of 150 to 90 angular degrees; a continuous circular capsulorhexis of 4.8 mm in diameter is performed. It involves hydrodissection and hydrodelineation of the lens, cataract phacoemulsification; the presence of signs of intraoperative irrigation flow deviation syndrome (IIFDS) and/or atonic iris (IFIS) is assessed intraoperatively. In their absence, a cohesive viscoelastic is introduced into a capsular sac in amount of 0.3 ml and an IOL is implanted therein. Then, residues of cohesive and dispersive viscoelastics are washed out from the capsular bag and the anterior chamber, and the incisions are sealed. If observing the signs of IIFDS and/or IFIS, the dispersive viscoelastic is introduced into the anterior chamber in the centre, followed by the introduction of the cohesive viscoelastic into the anterior chamber over iris throughout 360 angular degrees, the entire volume is filled, and the IOL is implanted intracapsularly. Cohesive and dispersive viscoelastics are washed out from the capsular sac and anterior chamber, and the operation is completed by sealing the corneal incisions.

EFFECT: method enables to achieve a tight adherence of the iris to the anterior capsule of the crystalline lens.

1 cl, 1 ex